1 // Created on: 2011-09-20
2 // Created by: Sergey ZERCHANINOV
3 // Copyright (c) 2011-2014 OPEN CASCADE SAS
5 // This file is part of Open CASCADE Technology software library.
7 // This library is free software; you can redistribute it and/or modify it under
8 // the terms of the GNU Lesser General Public License version 2.1 as published
9 // by the Free Software Foundation, with special exception defined in the file
10 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
11 // distribution for complete text of the license and disclaimer of any warranty.
13 // Alternatively, this file may be used under the terms of Open CASCADE
14 // commercial license or contractual agreement.
20 #include <OpenGl_GlCore15.hxx>
22 #include <InterfaceGraphic.hxx>
24 #include <OpenGl_AspectLine.hxx>
25 #include <OpenGl_AspectFace.hxx>
26 #include <OpenGl_AspectMarker.hxx>
27 #include <OpenGl_AspectText.hxx>
28 #include <OpenGl_Context.hxx>
29 #include <OpenGl_Element.hxx>
30 #include <OpenGl_FrameBuffer.hxx>
31 #include <OpenGl_Structure.hxx>
32 #include <OpenGl_Texture.hxx>
33 #include <OpenGl_View.hxx>
34 #include <OpenGl_Workspace.hxx>
36 #include <Graphic3d_TextureParams.hxx>
38 #if defined(_WIN32) && defined(HAVE_VIDEOCAPTURE)
39 #include <OpenGl_AVIWriter.hxx>
42 IMPLEMENT_STANDARD_HANDLE(OpenGl_Workspace,OpenGl_Window)
43 IMPLEMENT_STANDARD_RTTIEXT(OpenGl_Workspace,OpenGl_Window)
47 static const TEL_COLOUR THE_WHITE_COLOR = { { 1.0f, 1.0f, 1.0f, 1.0f } };
48 static const OpenGl_Vec4 THE_BLACK_COLOR (0.0f, 0.0f, 0.0f, 1.0f);
50 static const OpenGl_AspectLine myDefaultAspectLine;
51 static const OpenGl_AspectFace myDefaultAspectFace;
52 static const OpenGl_AspectMarker myDefaultAspectMarker;
53 static const OpenGl_AspectText myDefaultAspectText;
55 static const OpenGl_TextParam myDefaultTextParam =
57 16, Graphic3d_HTA_LEFT, Graphic3d_VTA_BOTTOM
60 static const OpenGl_Matrix myDefaultMatrix =
62 {{ 1.0F, 0.0F, 0.0F, 0.0F },
63 { 0.0F, 1.0F, 0.0F, 0.0F },
64 { 0.0F, 0.0F, 1.0F, 0.0F },
65 { 0.0F, 0.0F, 0.0F, 1.0F }}
70 // =======================================================================
73 // =======================================================================
74 void OpenGl_Material::Init (const OPENGL_SURF_PROP& theProp)
77 if (theProp.color_mask & OPENGL_AMBIENT_MASK)
79 const float* aSrcAmb = theProp.isphysic ? theProp.ambcol.rgb : theProp.matcol.rgb;
80 Ambient = OpenGl_Vec4 (aSrcAmb[0] * theProp.amb,
81 aSrcAmb[1] * theProp.amb,
82 aSrcAmb[2] * theProp.amb,
87 Ambient = THE_BLACK_COLOR;
90 // diffusion component
91 if (theProp.color_mask & OPENGL_DIFFUSE_MASK)
93 const float* aSrcDif = theProp.isphysic ? theProp.difcol.rgb : theProp.matcol.rgb;
94 Diffuse = OpenGl_Vec4 (aSrcDif[0] * theProp.diff,
95 aSrcDif[1] * theProp.diff,
96 aSrcDif[2] * theProp.diff,
101 Diffuse = THE_BLACK_COLOR;
104 // specular component
105 if (theProp.color_mask & OPENGL_SPECULAR_MASK)
107 const float* aSrcSpe = theProp.isphysic ? theProp.speccol.rgb : THE_WHITE_COLOR.rgb;
108 Specular = OpenGl_Vec4 (aSrcSpe[0] * theProp.spec,
109 aSrcSpe[1] * theProp.spec,
110 aSrcSpe[2] * theProp.spec,
115 Specular = THE_BLACK_COLOR;
118 // emission component
119 if (theProp.color_mask & OPENGL_EMISSIVE_MASK)
121 const float* aSrcEms = theProp.isphysic ? theProp.emscol.rgb : theProp.matcol.rgb;
122 Emission = OpenGl_Vec4 (aSrcEms[0] * theProp.emsv,
123 aSrcEms[1] * theProp.emsv,
124 aSrcEms[2] * theProp.emsv,
129 Emission = THE_BLACK_COLOR;
132 ChangeShine() = theProp.shine;
133 ChangeTransparency() = theProp.trans;
136 // =======================================================================
137 // function : OpenGl_Workspace
139 // =======================================================================
140 OpenGl_Workspace::OpenGl_Workspace (const Handle(Aspect_DisplayConnection)& theDisplayConnection,
141 const CALL_DEF_WINDOW& theCWindow,
142 Aspect_RenderingContext theGContext,
143 const Handle(OpenGl_Caps)& theCaps,
144 const Handle(OpenGl_Context)& theShareCtx)
145 : OpenGl_Window (theDisplayConnection, theCWindow, theGContext, theCaps, theShareCtx),
147 HighlightColor (&THE_WHITE_COLOR),
149 myComputeInitStatus (OpenGl_RT_NONE),
150 myIsRaytraceDataValid (Standard_False),
151 myViewModificationStatus (0),
152 myLayersModificationStatus (0),
154 myAntiAliasingMode (3),
155 myTransientDrawToFront (Standard_True),
156 myBackBufferRestored (Standard_False),
157 myIsImmediateDrawn (Standard_False),
158 myUseTransparency (Standard_False),
159 myUseZBuffer (Standard_False),
160 myUseDepthTest (Standard_True),
161 myUseGLLight (Standard_True),
163 AspectLine_set (&myDefaultAspectLine),
164 AspectLine_applied (NULL),
165 AspectFace_set (&myDefaultAspectFace),
166 AspectFace_applied (NULL),
167 AspectMarker_set (&myDefaultAspectMarker),
168 AspectMarker_applied (NULL),
169 AspectText_set (&myDefaultAspectText),
170 AspectText_applied (NULL),
171 TextParam_set (&myDefaultTextParam),
172 TextParam_applied (NULL),
173 ViewMatrix_applied (&myDefaultMatrix),
174 StructureMatrix_applied (&myDefaultMatrix),
175 myCullingMode (TelCullUndefined),
176 myModelViewMatrix (myDefaultMatrix),
177 PolygonOffset_applied (THE_DEFAULT_POFFSET)
179 myGlContext->core11fwd->glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
181 if (!myGlContext->GetResource ("OpenGl_LineAttributes", myLineAttribs))
183 // share and register for release once the resource is no longer used
184 myLineAttribs = new OpenGl_LineAttributes();
185 myGlContext->ShareResource ("OpenGl_LineAttributes", myLineAttribs);
186 myLineAttribs->Init (myGlContext);
189 // General initialization of the context
191 // Eviter d'avoir les faces mal orientees en noir.
192 // Pourrait etre utiliser pour detecter les problemes d'orientation
193 glLightModeli ((GLenum )GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE);
195 // Optimisation pour le Fog et l'antialiasing
196 glHint (GL_FOG_HINT, GL_FASTEST);
197 glHint (GL_POINT_SMOOTH_HINT, GL_FASTEST);
198 glHint (GL_LINE_SMOOTH_HINT, GL_FASTEST);
199 glHint (GL_POLYGON_SMOOTH_HINT, GL_FASTEST);
202 const char* anAaEnv = ::getenv ("CALL_OPENGL_ANTIALIASING_MODE");
206 if (sscanf (anAaEnv, "%d", &v) > 0) myAntiAliasingMode = v;
210 // =======================================================================
211 // function : SetImmediateModeDrawToFront
213 // =======================================================================
214 Standard_Boolean OpenGl_Workspace::SetImmediateModeDrawToFront (const Standard_Boolean theDrawToFrontBuffer)
216 const Standard_Boolean aPrevMode = myTransientDrawToFront;
217 myTransientDrawToFront = theDrawToFrontBuffer;
221 // =======================================================================
222 // function : ~OpenGl_Workspace
224 // =======================================================================
225 OpenGl_Workspace::~OpenGl_Workspace()
227 if (!myLineAttribs.IsNull())
229 myLineAttribs.Nullify();
230 myGlContext->ReleaseResource ("OpenGl_LineAttributes", Standard_True);
233 ReleaseRaytraceResources();
236 // =======================================================================
237 // function : Activate
239 // =======================================================================
240 Standard_Boolean OpenGl_Workspace::Activate()
242 if (!OpenGl_Window::Activate())
243 return Standard_False;
245 ViewMatrix_applied = &myDefaultMatrix;
246 StructureMatrix_applied = &myDefaultMatrix;
248 ResetAppliedAspect();
250 return Standard_True;
253 // =======================================================================
254 // function : UseTransparency
255 // purpose : call_togl_transparency
256 // =======================================================================
257 void OpenGl_Workspace::UseTransparency (const Standard_Boolean theFlag)
259 myUseTransparency = theFlag;
262 //=======================================================================
263 //function : ResetAppliedAspect
264 //purpose : Sets default values of GL parameters in accordance with default aspects
265 //=======================================================================
266 void OpenGl_Workspace::ResetAppliedAspect()
268 NamedStatus = !myTextureBound.IsNull() ? OPENGL_NS_TEXTURE : 0;
269 HighlightColor = &THE_WHITE_COLOR;
270 AspectLine_set = &myDefaultAspectLine;
271 AspectLine_applied = NULL;
272 AspectFace_set = &myDefaultAspectFace;
273 AspectFace_applied = NULL;
274 AspectMarker_set = &myDefaultAspectMarker;
275 AspectMarker_applied = NULL;
276 AspectText_set = &myDefaultAspectText;
277 AspectText_applied = NULL;
278 TextParam_set = &myDefaultTextParam;
279 TextParam_applied = NULL;
280 PolygonOffset_applied = THE_DEFAULT_POFFSET;
281 myCullingMode = TelCullUndefined;
283 AspectLine(Standard_True);
284 AspectFace(Standard_True);
285 AspectMarker(Standard_True);
286 AspectText(Standard_True);
289 // =======================================================================
290 // function : DisableTexture
292 // =======================================================================
293 Handle(OpenGl_Texture) OpenGl_Workspace::DisableTexture()
295 if (myTextureBound.IsNull())
297 return myTextureBound;
300 // reset texture matrix because some code may expect it is identity
301 GLint aMatrixMode = GL_TEXTURE;
302 glGetIntegerv (GL_MATRIX_MODE, &aMatrixMode);
303 glMatrixMode (GL_TEXTURE);
305 glMatrixMode (aMatrixMode);
307 myTextureBound->Unbind (myGlContext);
308 switch (myTextureBound->GetTarget())
312 if (myTextureBound->GetParams()->GenMode() != GL_NONE)
314 glDisable (GL_TEXTURE_GEN_S);
316 glDisable (GL_TEXTURE_1D);
321 if (myTextureBound->GetParams()->GenMode() != GL_NONE)
323 glDisable (GL_TEXTURE_GEN_S);
324 glDisable (GL_TEXTURE_GEN_T);
325 if (myTextureBound->GetParams()->GenMode() == Graphic3d_TOTM_SPRITE)
327 glDisable (GL_POINT_SPRITE);
330 glDisable (GL_TEXTURE_2D);
336 Handle(OpenGl_Texture) aPrevTexture = myTextureBound;
337 myTextureBound.Nullify();
341 // =======================================================================
342 // function : setTextureParams
344 // =======================================================================
345 void OpenGl_Workspace::setTextureParams (Handle(OpenGl_Texture)& theTexture,
346 const Handle(Graphic3d_TextureParams)& theParams)
348 const Handle(Graphic3d_TextureParams)& aParams = theParams.IsNull() ? theTexture->GetParams() : theParams;
349 if (aParams.IsNull())
354 GLint aMatrixMode = GL_TEXTURE;
355 glGetIntegerv (GL_MATRIX_MODE, &aMatrixMode);
357 // setup texture matrix
358 glMatrixMode (GL_TEXTURE);
360 const Graphic3d_Vec2& aScale = aParams->Scale();
361 const Graphic3d_Vec2& aTrans = aParams->Translation();
362 glScalef ( aScale.x(), aScale.y(), 1.0f);
363 glTranslatef (-aTrans.x(), -aTrans.y(), 0.0f);
364 glRotatef (-aParams->Rotation(), 0.0f, 0.0f, 1.0f);
366 // setup generation of texture coordinates
367 switch (aParams->GenMode())
369 case Graphic3d_TOTM_OBJECT:
371 glTexGeni (GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
372 glTexGenfv (GL_S, GL_OBJECT_PLANE, aParams->GenPlaneS().GetData());
373 if (theTexture->GetTarget() != GL_TEXTURE_1D)
375 glTexGeni (GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
376 glTexGenfv (GL_T, GL_OBJECT_PLANE, aParams->GenPlaneT().GetData());
380 case Graphic3d_TOTM_SPHERE:
382 glTexGeni (GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
383 if (theTexture->GetTarget() != GL_TEXTURE_1D)
385 glTexGeni (GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
389 case Graphic3d_TOTM_EYE:
391 glMatrixMode (GL_MODELVIEW);
395 glTexGeni (GL_S, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
396 glTexGenfv (GL_S, GL_EYE_PLANE, aParams->GenPlaneS().GetData());
398 if (theTexture->GetTarget() != GL_TEXTURE_1D)
400 glTexGeni (GL_T, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
401 glTexGenfv (GL_T, GL_EYE_PLANE, aParams->GenPlaneT().GetData());
406 case Graphic3d_TOTM_SPRITE:
408 if (GetGlContext()->core20 != NULL)
410 glEnable (GL_POINT_SPRITE);
411 glTexEnvi (GL_POINT_SPRITE, GL_COORD_REPLACE, GL_TRUE);
412 glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
413 GetGlContext()->core15->glPointParameteri (GL_POINT_SPRITE_COORD_ORIGIN, GL_LOWER_LEFT);
417 case Graphic3d_TOTM_MANUAL:
422 if (aParams->GenMode() != Graphic3d_TOTM_SPRITE)
424 glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, aParams->IsModulate() ? GL_MODULATE : GL_DECAL);
427 // setup texture filtering and wrapping
428 //if (theTexture->GetParams() != theParams)
429 const GLenum aFilter = (aParams->Filter() == Graphic3d_TOTF_NEAREST) ? GL_NEAREST : GL_LINEAR;
430 const GLenum aWrapMode = aParams->IsRepeat() ? GL_REPEAT : GL_CLAMP;
431 switch (theTexture->GetTarget())
435 glTexParameteri (GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, aFilter);
436 glTexParameteri (GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, aFilter);
437 glTexParameteri (GL_TEXTURE_1D, GL_TEXTURE_WRAP_S, aWrapMode);
442 GLenum aFilterMin = aFilter;
443 if (theTexture->HasMipmaps())
445 aFilterMin = GL_NEAREST_MIPMAP_NEAREST;
446 if (aParams->Filter() == Graphic3d_TOTF_BILINEAR)
448 aFilterMin = GL_LINEAR_MIPMAP_NEAREST;
450 else if (aParams->Filter() == Graphic3d_TOTF_TRILINEAR)
452 aFilterMin = GL_LINEAR_MIPMAP_LINEAR;
455 if (myGlContext->extAnis)
457 // setup degree of anisotropy filter
458 const GLint aMaxDegree = myGlContext->MaxDegreeOfAnisotropy();
459 switch (aParams->AnisoFilter())
461 case Graphic3d_LOTA_QUALITY:
463 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, aMaxDegree);
466 case Graphic3d_LOTA_MIDDLE:
469 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, (aMaxDegree <= 4) ? 2 : (aMaxDegree / 2));
472 case Graphic3d_LOTA_FAST:
474 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 2);
477 case Graphic3d_LOTA_OFF:
480 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1);
486 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, aFilterMin);
487 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, aFilter);
488 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, aWrapMode);
489 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, aWrapMode);
495 switch (theTexture->GetTarget())
499 if (aParams->GenMode() != Graphic3d_TOTM_MANUAL)
501 glEnable (GL_TEXTURE_GEN_S);
503 glEnable (GL_TEXTURE_1D);
508 if (aParams->GenMode() != Graphic3d_TOTM_MANUAL)
510 glEnable (GL_TEXTURE_GEN_S);
511 glEnable (GL_TEXTURE_GEN_T);
513 glEnable (GL_TEXTURE_2D);
519 glMatrixMode (aMatrixMode); // turn back active matrix
520 theTexture->SetParams (aParams);
523 // =======================================================================
524 // function : EnableTexture
526 // =======================================================================
527 Handle(OpenGl_Texture) OpenGl_Workspace::EnableTexture (const Handle(OpenGl_Texture)& theTexture,
528 const Handle(Graphic3d_TextureParams)& theParams)
530 if (theTexture.IsNull() || !theTexture->IsValid())
532 return DisableTexture();
535 if (myTextureBound == theTexture
536 && (theParams.IsNull() || theParams == theTexture->GetParams()))
539 return myTextureBound;
542 Handle(OpenGl_Texture) aPrevTexture = DisableTexture();
543 myTextureBound = theTexture;
544 myTextureBound->Bind (myGlContext);
545 setTextureParams (myTextureBound, theParams);
550 // =======================================================================
553 // =======================================================================
554 void OpenGl_Workspace::Redraw (const Graphic3d_CView& theCView,
555 const Aspect_CLayer2d& theCUnderLayer,
556 const Aspect_CLayer2d& theCOverLayer)
563 // release pending GL resources
564 Handle(OpenGl_Context) aGlCtx = GetGlContext();
565 aGlCtx->ReleaseDelayed();
567 // fetch OpenGl context state
568 aGlCtx->FetchState();
570 Tint toSwap = (aGlCtx->IsRender()); // swap buffers
571 GLint aViewPortBack[4];
572 OpenGl_FrameBuffer* aFrameBuffer = (OpenGl_FrameBuffer* )theCView.ptrFBO;
573 if (aFrameBuffer != NULL)
575 glGetIntegerv (GL_VIEWPORT, aViewPortBack);
576 aFrameBuffer->SetupViewport (aGlCtx);
577 aFrameBuffer->BindBuffer (aGlCtx);
578 toSwap = 0; // no need to swap buffers
581 if (theCView.RenderParams.Method != Graphic3d_RM_RAYTRACING || myComputeInitStatus == OpenGl_RT_FAIL)
583 const Standard_Boolean isImmediate = !myView->ImmediateStructures().IsEmpty();
584 redraw1 (theCView, theCUnderLayer, theCOverLayer, isImmediate ? 0 : toSwap);
587 RedrawImmediate (theCView, theCUnderLayer, theCOverLayer, Standard_True);
590 theCView.WasRedrawnGL = Standard_True;
594 int aSizeX = aFrameBuffer != NULL ? aFrameBuffer->GetVPSizeX() : myWidth;
595 int aSizeY = aFrameBuffer != NULL ? aFrameBuffer->GetVPSizeY() : myHeight;
597 Raytrace (theCView, aSizeX, aSizeY, toSwap, aFrameBuffer);
599 theCView.WasRedrawnGL = Standard_False;
602 if (aFrameBuffer != NULL)
604 aFrameBuffer->UnbindBuffer (aGlCtx);
605 // move back original viewport
606 glViewport (aViewPortBack[0], aViewPortBack[1], aViewPortBack[2], aViewPortBack[3]);
609 #if defined(_WIN32) && defined(HAVE_VIDEOCAPTURE)
610 if (OpenGl_AVIWriter_AllowWriting (theCView.DefWindow.XWindow))
613 glGetIntegerv (GL_VIEWPORT, params);
614 int nWidth = params[2] & ~0x7;
615 int nHeight = params[3] & ~0x7;
617 const int nBitsPerPixel = 24;
618 GLubyte* aDumpData = new GLubyte[nWidth * nHeight * nBitsPerPixel / 8];
620 glPixelStorei (GL_PACK_ALIGNMENT, 1);
621 glReadPixels (0, 0, nWidth, nHeight, GL_BGR_EXT, GL_UNSIGNED_BYTE, aDumpData);
622 OpenGl_AVIWriter_AVIWriter (aDumpData, nWidth, nHeight, nBitsPerPixel);
627 // reset render mode state
628 aGlCtx->FetchState();
631 // =======================================================================
632 // function : redraw1
634 // =======================================================================
635 void OpenGl_Workspace::redraw1 (const Graphic3d_CView& theCView,
636 const Aspect_CLayer2d& theCUnderLayer,
637 const Aspect_CLayer2d& theCOverLayer,
645 // request reset of material
646 NamedStatus |= OPENGL_NS_RESMAT;
648 GLbitfield toClear = GL_COLOR_BUFFER_BIT;
651 glDepthFunc (GL_LEQUAL);
652 glDepthMask (GL_TRUE);
655 glEnable (GL_DEPTH_TEST);
659 glDisable (GL_DEPTH_TEST);
663 toClear |= GL_DEPTH_BUFFER_BIT;
667 glDisable (GL_DEPTH_TEST);
670 if (NamedStatus & OPENGL_NS_WHITEBACK)
672 // set background to white
673 glClearColor (1.0f, 1.0f, 1.0f, 1.0f);
674 toClear |= GL_DEPTH_BUFFER_BIT;
678 glClearColor (myBgColor.rgb[0], myBgColor.rgb[1], myBgColor.rgb[2], 0.0f);
682 Handle(OpenGl_Workspace) aWS (this);
683 myView->Render (myPrintContext, aWS, theCView, theCUnderLayer, theCOverLayer);
688 GetGlContext()->SwapBuffers();
689 myBackBufferRestored = Standard_False;
690 myIsImmediateDrawn = Standard_False;
695 myBackBufferRestored = Standard_True;
696 myIsImmediateDrawn = Standard_False;
700 // =======================================================================
701 // function : copyBackToFront
703 // =======================================================================
704 void OpenGl_Workspace::copyBackToFront()
706 glMatrixMode (GL_PROJECTION);
709 gluOrtho2D (0.0, (GLdouble )myWidth, 0.0, (GLdouble )myHeight);
710 glMatrixMode (GL_MODELVIEW);
716 glDrawBuffer (GL_FRONT);
717 glReadBuffer (GL_BACK);
719 glRasterPos2i (0, 0);
720 glCopyPixels (0, 0, myWidth + 1, myHeight + 1, GL_COLOR);
724 glMatrixMode (GL_PROJECTION);
726 glMatrixMode (GL_MODELVIEW);
729 glDrawBuffer (GL_BACK);
731 myIsImmediateDrawn = Standard_False;
734 // =======================================================================
735 // function : DisplayCallback
737 // =======================================================================
738 void OpenGl_Workspace::DisplayCallback (const Graphic3d_CView& theCView,
739 Standard_Integer theReason)
741 if (theCView.GDisplayCB == NULL)
746 Aspect_GraphicCallbackStruct aCallData;
747 aCallData.reason = theReason;
748 aCallData.glContext = GetGlContext();
749 aCallData.wsID = theCView.WsId;
750 aCallData.viewID = theCView.ViewId;
751 theCView.GDisplayCB (theCView.DefWindow.XWindow, theCView.GClientData, &aCallData);
754 // =======================================================================
755 // function : RedrawImmediate
757 // =======================================================================
758 void OpenGl_Workspace::RedrawImmediate (const Graphic3d_CView& theCView,
759 const Aspect_CLayer2d& theCUnderLayer,
760 const Aspect_CLayer2d& theCOverLayer,
761 const Standard_Boolean theToForce)
768 GLboolean isDoubleBuffer = GL_FALSE;
769 glGetBooleanv (GL_DOUBLEBUFFER, &isDoubleBuffer);
770 if (myView->ImmediateStructures().IsEmpty())
773 || !myIsImmediateDrawn)
775 myIsImmediateDrawn = Standard_False;
779 if (myBackBufferRestored
787 Redraw (theCView, theCUnderLayer, theCOverLayer);
792 if (isDoubleBuffer && myTransientDrawToFront)
794 if (!myBackBufferRestored)
796 Redraw (theCView, theCUnderLayer, theCOverLayer);
800 MakeFrontBufCurrent();
804 myBackBufferRestored = Standard_False;
806 myIsImmediateDrawn = Standard_True;
808 NamedStatus |= OPENGL_NS_IMMEDIATE;
809 ///glDisable (GL_LIGHTING);
810 glDisable (GL_DEPTH_TEST);
812 Handle(OpenGl_Workspace) aWS (this);
813 for (OpenGl_SequenceOfStructure::Iterator anIter (myView->ImmediateStructures());
814 anIter.More(); anIter.Next())
816 const OpenGl_Structure* aStructure = anIter.Value();
817 aStructure->Render (aWS);
820 NamedStatus &= ~OPENGL_NS_IMMEDIATE;
822 if (isDoubleBuffer && myTransientDrawToFront)
825 MakeBackBufCurrent();